Home / 48,013.31-71,970.75-18,423.20

Finding the Fourth Proportional to 48,013.31, 71,970.75 and 18,423.20

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Solution

The fourth proportional to 48,013.31, 71,970.75 and 18,423.20 is: 27,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,013.31 : 71,970.75 = 18,423.20 : x
  2. Step 2: Convert to fraction form
    48,013.31/71,970.75 = 18,423.20/x
  3. Step 3: Cross multiply
    48,013.31x = 71,970.75 × 18,423.20
  4. Step 4: Simplify right side
    48,013.31x = 1,325,931,161.55
  5. Step 5: Solve for x
    x = 1,325,931,161.55/48,013.31
  6. Step 6: Final answer
    x = 27,615.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.